title: New approach to heterogeneous enzyme immunoassays using tagged enzyme-ligand conjugates.
mesh_terms: D000906:Antibodies; D000936:Antigen-Antibody Complex; D001360:Avidin; D001710:Biotin; D004926:Escherichia coli / Q000201:enzymology; D005696:Galactosidases / Q000378:metabolism*; D007124:Immunoenzyme Techniques; D007202:Indicators and Reagents; D008024:Ligands; D012685:Sepharose / Q000031:analogs & derivatives; D001616:beta-Galactosidase / Q000378:metabolism*
chemical_list: D000906:Antibodies; D000936:Antigen-Antibody Complex; D007202:Indicators and Reagents; D008024:Ligands; D001360:Avidin; C024903:aminohexyl-sepharose; D001710:Biotin; D012685:Sepharose; D005696:Galactosidases; D001616:beta-Galactosidase